Created with Raphaël 2.1.2
3.0
2017 (jun)
-1.0
1.0
2.0
3.0
4.0
3.9
2006
3.5
2007
-1.3
2008
-1.2
2009
4.4
2010
4.2
2011
3.4
2012
1.0
2013
2.7
2014
2.5
2015
2.3
2016
3.0
2017 (jun)